The immune system (AQA GCSE Biology Combined Science): Flashcards

Harmful germs that get into your body

Main defenders that fight infections in your body

Phagocytosis, antibody production, antitoxin production

White blood cells engulf & destroy pathogens

Special proteins that attack specific pathogens

Each antibody type only works against one particular pathogen

Unique markers on a pathogen's surface

Proteins that neutralise toxins/poisons released by pathogens

White blood cells that remember pathogens for years

Primary: slow, feel ill. Secondary: fast, no illness (immunity)